Switch



Feb. 19, 1929.

w. H. HORRUM jsvmcn Fil ed May 29. 1926 2 Sheets-Sheet l Inventor zlttomey 2 Sheets-Sheet 2 wim SWITCH w. HORRUM Fi'led 3213729. 1926 [El-El-El-El-El-EEPEI-EPEFEJ- J MPWW EI-EFEJrEFEl- EPQEI-EFELE- @EIELEIEIEIEIEIEJEIEL @El-El- @JE J EHQ EEIEIE El-Efl-Ei-EklE-EEI-lE-Ei-El-El- @EIEIEIEIEEIEJEIEIIE Feb. 19, 1929.

Inventor Wfl/f'/W Attorney Patented Feb. 19, 1929.

WILLIAM HENRY HORRUI' OF ADAMS, N

EBRASKA, AESIGNOR, BY MESNE ASSIGN- MEN'IS, TO RAYMOND HOB-RUM.

SWITCH.

Application filed May 29,

invention relates to improvements in sw tches and par icnlarly to a swtch adapted for use in controlling the supply of energy to *alio receiving; sets, and for controlling;

his energy in such a manner that it may be supplied to any one of a pin 'ahty or receiva switch construction more p:

ing r ob ect oi the invention resides 1h controlling a plura ile 14121111181 in order that :-;y of may be coi'lnected i a group of btu'cleries a 1 in L L/ 13 snc enn: ind i t or" let ant tile d' li ni ts ant so forth one the customer dillllUDStlllllOil 21 p21, c161 rich 1 provis the energy receiy any one the inc;

he other in e-ly conrcl incnih 'o the ccniprehen (l s nr ieron s i )roven sic-,cilic :t the and 'lollo w- ;e and arra without uep r ing of the invention ovation thereof.

the switch with ar elevation of gl nnatic representatioi ciroiitconnected thereto for co the circuit between a plurality of receiving sets and other apparatus operated thereby.

Fig. is a 1 etail sectional VIEW thr ugh the switch construction, showing on an enlarged 1926. Serial no. 1121M.

scale, one of the pairs of contacts with the inovaole control lneinber engaged therebetween.

Re .erring to the drawings in detail, 1 indicates a base plate for th s\ "itcl which is made of suitableinsulatinglnaterial oi. suitable preferably re rngular in shape as clearly l Fig. 1. A channel member 2 is lower dge of this plate 1 as shown in Fig. 1, and slidably mounts a runner 3 adapted to move longitudinally of the channel n'ieniber L, and which is provided with a pair of angle brackets l having one end of each secured to the runner 3 and the opposite ends extending in spaced parallel relation late it'roin the face of the runner 3 r ceii inountine' e and the piv it pin 6 to these brac Q .n'itch member 5 is 1. length subilly the same as the base plate 1 ant is tor-riled at its and opposite to the i pivotpin 6 with a handle 7 by whi-h it nay he con e iently operated in a manner which will be her 'eibed.

i -1 pairs of stationary contact ounted in rows as indicated at -1 12 respectively. lVhile tire n the pairs of contacts are shown, it is rstood that any desire oer of 'oiidcd accord: the

tus to be controlled by the it there may be any number of 2 row that i be desirthe switch is J. a O

T hes i e 14 havin extend throu and receiy fro openii s in the v ,..1. i e ,d

A 3: he look nut 16 or s contact on the base plate with the llT- seated against the base thereof. ie lock nuts also serves to .recure or cable l a wire to she extension 15 for interposing the contact in the circuit which it controls. As clearly shown in Fig, 41, these stationary contacts are of identical construction and arranged in opposite relation in a pair, and have resilient fingers 1'? projecting from the body portions 11 which are curved outwardly as indicated at 18 for purposes which will hereinaftel be described.

As clearly illustrated in F l, the switch member 5 is adapted to be aiined with the pairs of contacts in any one of the rows Whicl extends substantially at r it angles ihannel member-2, so that it may he ino vo" between the contacts of each pair in any 0 row. At the points of en 'agenient oi the switch member 5 \Vibll the pairs of contacts in any one of the rows, the same is recessed receive a A i-a y of U-shaped contacts This switch i ernber 5 structed suitable insulati was i the U-shaped coi W O i 19 are of AUll D O and are adapted to close the circui the contacts oi a pair as clearly iihzs' 1 and i, when the vitch l'ieil'll' r moved into the closed position as iiiustrated in r l and 7 It will be seen that the circuits or t J of contacts in any one row may be closed by the operation of the switch ineniher through the positioning oi runner 3 in alineni'ent With the row of contacts to be closed and the pivotal movement of the switch ineinber in the position to engage all of the contacts the row as shown in F 1 and This switch construction has been particuarly designed for use in radio studios and sales rooms in order to place one of any nunr her of sets in operation through the use oi the same set of batteries, loud speaker and antenna and ground connections. To iilustrate the application of the switch construction in this manner, reference insi e parlie pairs ticularly to Fi 3,in Which it will be noted that one contact of each pair of corr sgonding pairs in each row are connected in corninon circuit as indicated 20, 21, 22, 23, I, 25, 26, 2'5, 28, 29 and 30 respectively, Wh ne each of the remaining contacts of each pair in row are connected by a separate in ulated wire connection as indicated at 31 w th *2 radio receiving indicated at 32 the purpose of illustrathm e i r Y 115: sets o1 any conventioi 3 in i inoicatedpy the numerals l, a, It Vlli he from an innnat in of Fig. 3, that oi the circuit connection the radio set 32 made by the Wires 3i v i one contact of each pai r in a row of cont 4 s. The common wire 20 is illustrated in 3, as connected with the plus terminal of a U battery 33 While the negative terminal of this battery is connected to the Wire 28, vrhi 1 forms the positive connection for the A hattery The negative terminal of the A battery is connected to the Wire 29 While the B battery 35 has four terminals in Wh'ch the negative terminal is connected to the Wire 30 and the three positive terminals connected to the Wires 25, 26, and 2'? respectively.

The antenna connection for any one of the ,see

roin F o, ipreciatet it will thus be a that this switch mechanism provi a constructiol vhich may he in e of en in order to controi any sets, by which :3

z i m or the opei i the switch to 1t thri i 12'; of conta' is t ie set and that one a: l a x used ion oi" any one it will be observes that it will 3 simplify the expense in connecdeinonstration of radio receivsets in saies rooms and Si1id1 places 111D Where several have to he in it need in operative condition for denionsti purposes. It Q'COI'lOllllZfiS battery consun'iption and apparatus required he in constant use and thcrerore effectively econoin' in the operation and demonstration of a number of receiving a It shouid thus be ciea v understood the invention above 53L rorth conton'zplates t 1e provision a sire-vie and 'cient W1 ten r 165% of independent I ration of the devices series of circuits in a sininimanner.

Having thus described my invention, What I claim as new i r A circuit closer, comprising a base, h e a plurality oi .;:oups of cont-acts me i. thereon in spaced parallel relation, group oi contacts being formed of a plum of pairs oi? contact members nioun ei 7. equal spaced, and alinco. relation on said iase, a ch *i el shaped side carried by the hasc extendiii at right angles to the aligned c'ro of con acts, a block slidalz-iy mounted iii i;- guide, a rod nieinber formed of insulating; 111E"' "1i a1 and pivotally attached at one end to said block or movement therewith ani'l adapted for selective engagement with said aligned groups of contacts whereby to siinultaneo-sly bridge all the con acts of a predetermined group, and a plura i v of contact hands mounted on said rod member in spaced relation and adapted to respectively engage the contacts or each pair for closing the circuit therehetween.

In testimony whereof I my signature.

WILLIAM HENRY HORaUli L 

